/****************************************************************************
 * Copyright 2009 Huascar A. Sanchez                                        *
 *                                                                          *
 * Licensed under the Apache License, Version 2.0 (the "License");          *
 * you may not use this file except in compliance with the License.         *
 * You may obtain a copy of the License at                                  *
 *                                                                          *
 *     http://www.apache.org/licenses/LICENSE-2.0                           *
 *                                                                          *
 * Unless required by applicable law or agreed to in writing, software      *
 * distributed under the License is distributed on an "AS IS" BASIS,        *
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
 * See the License for the specific language governing permissions and      *
 * limitations under the License.                                           *
 ****************************************************************************/
package com.gotobject.filter.spi;

import java.util.Iterator;
import java.util.NoSuchElementException;

/**
 * @author huascar.sanchez@gmail.com (Huascar A. Sanchez)
 */
public class IterableCharacterReader implements Iterable<Character>, Iterator<Character> { 
  private final String  str;
  private       int     count = 0;
 
  public IterableCharacterReader(String s) {
    str = s; 
  }

    public boolean hasNext() {
      return count < str.length();
  } 
 
  public Iterator<Character> iterator() { 
    return this; 
  } 
 
  public Character next() { 
    if(count == str.length()) {
        throw new NoSuchElementException();
    }
 
    count++; 
    return str.charAt(count-1); 
  } 
 
  public void remove() { 
    throw new UnsupportedOperationException(); 
  } 
} 